ADM3488E Series

3.3 V, Low Power, RS-485/RS-422 Transceiver (Full Duplex, 250 kbps, Slew Rate Limited)

Catalog

3.3 V, Low Power, RS-485/RS-422 Transceiver (Full Duplex, 250 kbps, Slew Rate Limited)

Part	Operating Temperature [Max]	Operating Temperature [Min]	Voltage - Supply [Max]	Voltage - Supply [Min]	Receiver Hysteresis	Data Rate	Type	Supplier Device Package	Protocol	Mounting Type	Duplex	Package / Case	Package / Case [y]	Package / Case [x]
Analog Devices ADM3488EARZ	85 °C	-40 °C	3.6 V	3 V	50 mV	250 KBd	Transceiver	8-SOIC	RS422 RS485	Surface Mount	Full	8-SOIC	3.9 mm	0.154 in
Analog Devices ADM3488EARZ-REEL7	85 °C	-40 °C	3.6 V	3 V	50 mV	250 KBd	Transceiver	8-SOIC	RS422 RS485	Surface Mount	Full	8-SOIC	3.9 mm	0.154 in
Analog Devices ADM3488ARZN	85 °C	-40 °C	3.6 V	3 V	50 mV	250 KBd	Transceiver	8-SOIC	RS422 RS485	Surface Mount	Full	8-SOIC	3.9 mm	0.154 in
Analog Devices ADM3488ARZ	85 °C	-40 °C	3.6 V	3 V	50 mV	250 KBd	Transceiver	8-SOIC	RS422 RS485	Surface Mount	Full	8-SOIC	3.9 mm	0.154 in

Catalog

3.3 V, Low Power, RS-485/RS-422 Transceiver (Full Duplex, 250 kbps, Slew Rate Limited)

Key Features

• TIA/EIA RS-485/RS-422 compliant

• ±15 kV ESD protection on RS-485 input/output pins

• Data rates: ADM3483E/ADM3488E: 250 kbps

• Half duplex

• Up to 32 nodes on the bus

• Receiver open-circuit, fail-safe design

• Outputs high-Z when disabled or powered off

• Common-mode input range: −7 V to +12 V

• Thermal shutdown and short-circuit protection

• Industry-standard 75176 pinout

• 8-lead SOIC package

• Power/energy metering

• Telecommunications

• EMI-sensitive systems

• Industrial control

• Local area networks

Description

TheADM3483E/ADM3486E/ ADM3488E /ADM3490E/ADM3491Eare 3.3 V, low power data transceivers with ±15 kV ESD protection suitable for full- and half-duplex communication on multipoint bus transmission lines. They are designed for balanced data transmission, and they comply with TIA/EIA standards RS485 and RS-422. The ADM3483E / ADM3486E are half-duplex transceivers that share differential lines and have separate enable inputs for the driver and receiver. The full-duplex ADM3488E / ADM3490E / ADM3491E transceivers have dedicated differential line driver outputs and receiver inputs. The ADM3491E also features separate enable inputs for the driver and receiver.The devices have a 12 kΩ receiver input impedance, which allows up to 32 transceivers on a bus. Because only one driver should be enabled at any time, the output of a disabled or powered-down driver is tristated to avoid overloading the bus.The driver outputs of the ADM3483E / ADM3486E / ADM3488E are slew rate limited, in order to reduce EMI and data errors caused by reflections from improperly terminated buses. The receiver has a fail-safe feature that ensures a logic high output when the inputs are floating. Excessive power dissipation caused by bus contention or by output shorting is prevented with a thermal shutdown circuit. The parts are fully specified over the industrial temperature range and are available in 8-lead and 14-lead narrow SOIC packages.APPLICATIONSPower/energy meteringTelecommunicationsEMI-sensitive systemsIndustrial controlLocal area networks